Consider the following demand and supply curves. Demand isQ^d= 90 - 0.5Pand Supply isQ^s= 2P.

a) Calculate the equilibrium price and quantity.

b) Calculate the revenue, economic surplus and consumer surplus received from this product.

c)If a per unittax of $3.00is added to the supply curve, calculate the new equilibrium price and quantity, and calculate how consumer surplus, marginal value, and total value are affected in this market?Explain.